Seiko Cal. 6263 - 455

This Spring Drive model from 1975 features a 34mm Hardlex-Coated Steel case. It features a Green dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-8908769c78e9]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1975

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